The news comes after digital distribution firm Limited Press called out Facebook and announced that 80 percent of clicks on its Facebook ads came from fake users, the BBC reported.

In a post on its Facebook page, the firm posted: "Bots were loading pages and driving up our advertising costs. So we tried contacting Facebook about this. Unfortunately, they wouldn't reply."

Facebook's estimation of fake profiles marks a major jump from its last estimate in March, when it said that it had about 50 million fake users.

Facebook said that the fake accounts come mainly from developing countries, rather than more developed markets.

"We believe the percentage of accounts that are duplicate or false is meaningfully lower in developed markets such as the United States or Australia and higher in developing markets such as Indonesia and Turkey," said the company, reported CNN.

"Does this mean that a huge amount of fake accounts were created over the last five months? Not really: Facebook is simply being more transparent when it comes to specifying which false accounts it is tracking," CNET wrote.